Trolley-stand.



No. 826,565. PATENTED JULY 24, 1906. B. A. GRAS BERGER.

TROLLEY STAND.

APPLICATION IILED A UG.17,1905..

2 8HEETS-SHEET 2.

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UNITED; STATES PATENT ornron;

Specification of Letters Patent.

Patented July 24, 1906,

Application filed August 17, 1905. Serial No. 274,558.

Toull whom it may concern:

Be it known that I, BONIFAOE A. GRAS- BERGER, a citizen of the UnitedStates, residingat the city of Richmond, in the State of,

irgima, have invented certain new and useful.- Improvements inTrolley-Stands; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to WhlGh it appertains to. make and use thesame.

This invention relates to trolley-stands used; in connection withelectric railroads; and it consistsin the novel construction andcombination of the parts hereinafter fully described and claimed.

In the drawings, Fi re 1 is a side view of the trolley-stand, partI y insection and showing the trolley-stand with the trolley in con tact withthe wire. Fig. 2 is aplanviewof the trolley-stand. Fig. 3 is a side viewsimilar to Fig. l, but shows the position ofthe parts after the trolleyhas left the line-wire andhasdroppedto its lowest position. Fig. 4 is adetail View showing the check-lugs of the base and frame. Figs. 5 and 6show modifications.

A is av baseplate which is secured to the top of the-car and pivot-pina.

B is a frame provided at one end with a socket b, which is journaled onthe pin a. The frame, however, may be pivotallyconnectedwith thebase-plate in any otherapproved manner.

Cisthe trolley-support whichis pivoted to the frame B by a pin 0.

Dis the trolley head or sheave which-runs against the line-wire d. invthe usual manner.

The lower part of the trolley-support preferably consists of a forkedbracket E, which is'provided' with arms e, whichprojectupwardly andrear-wardly from its pivot-pin c.

In order to prevent the trolley-pole from swinging around crosswise ofthe car into the path of the poles which suport the linewire, thebase-plate and the ame are provided with check stops or lugs F and f,respectively. A single lug f on the frame is preferably arranged"between twolugs F on.

the base-plate, and: sufficient space is pro videdtbetweenthelugs to letthetrolley-pole vibrate laterally toa limited extent. One or both of.the meeting edges of the said checklugs are beveled or rounded, so thatthey may operate as face-cams when pressed together.

provided with a vertical- When the trolley-pole swings around andthelugs meet, the motion of the pole is arrested and the pole isprevented from striking one of the line-wire poles. When thetrolley poleis pulled around by hand to reverse the trolley, one lug rides over theother, the trolley-frame and-pole being lifted slightly by the lugs anddropping back by gravity to their 0 i inal positions when the lugs havebeen move out of contact with each other.

G is. a longitudinally-arranged trip-bar.

This trip-bar has a downwardly inclined or curved front end g, and H isa link or links.

which are pivoted to the end 9 by a pin it. Theselinks are pivoted tothe forkedbracket E by a pin I and are provided withstop-lugs t.

J represents stops carried by the frame and.

arranged to coact with the stop-lugs i. The stops J preferably consistof screws which engage with projections of; the frame, so that the saidstops are adjustable.

A sin provide if desired, or each arm H1 may have a lug t, andtwosimilarstopsJ may be provided.

K represents theactuating-springs of the trip-bar. These springs havetheir front ends secured to lugs on the trip-bar, and-their rear endsare connected to lugsk onithe rear end portion of the frame B. Thesprings are con-- nected with. the lugs by suitable adjustableconnections, so that the tension of the springs can be regulated; Twoactuating-springs are shown; but a single actuating-springcan bearranged to work effectively.

The rear end portion, of; the trip-bar is slidably supported: from theframe B, and two pivoted links L are preferably provided for thispurpose. A single link might, however,

be used, or'the rear end of the trip-bar might be slidably supported inany other approved manner.

, M is a, stop for the rearend of the trip-bar to abut against. Thisstop preferably consists of a screw, so that it may be adjustable, andthis screw is carried by the rear end portion of the frameB;

N is a check-spring arranged. between the frame B and thetrolley-support in, any approved manner, and preferably provided withmeans for adjusting its tension. This spring N. prevents thetrolley-support from dropping downward with too great aforce ormomentum.

0 represents flexible connections, such as cordsor chains,arrangedbetweenthe arms e le lug t and a single stop J may be of thetrolley-support and lugs p on the trip.- bar. These connections arepreferably provided with means for adjusting their length, and a singleconnection can be used, if desirable, in place of two connections.

The operation of the devices are as follows: When the parts are in thepositions shown in Fig. 1 and the trolley-sheave accidentally leaves theline-wire and flies upward, the center of the pin it is raised, so thatthe trip-rod is suddenly moved rearwardly by its actuating-springs, andthe links H are turned upward to the position shown in Fig. 3. When theparts are in their normal positions, the center of the pin I, whichcarries the links H, is arranged a little above the points of support orconnection of the ends of the trip-bar, so that the trolley-support issustained in its raised positions by the said actuating-springs. Thetrip-rod is tripped by the stops J and 'i, which bear against eachother. Any other means may also be used for tripping the triprod whichwill raise the center of the pin it above the level of the center of thepin I, and other approved means besides the said stops may be used forholding the said parts in their normal positions, as shown in Fig. 1.When the trolley-support drops to the position shown in Fig. 3, thetrolley-head cannot strike the line-wire supports and cannot be damagedby coming in contact with them before the car comes to a standstill. Theresetting of the devices is effected by pulling the trolley-supportdownward until the fleXible connections 0 pull the trip-rod forwardsufiiciently to turn the links H downward to their original positions.

In the modification shown in Figs. 5 and 6 the frame B is tubular, and asingle spring K is provided for actuating the trip-bars G. This singlespring is arranged. around the frame and acts as a compression-springinstead of as a tension-spring. One end of the spring K abuts against across-head P, which is' slidable on the frame B. Two trip-bars G areprovided instead of a single trip-bar, and these trip-bars are pivotedto the said cross-head so that their rear ends are slidably supported bythe frame. The front ends of the two trip-bars G are pivoted to twolinks H, which are pivoted outside the fork of the bracket E. The triprods or bars G are provided with screw-threaded turnbuckles s, so thattheir lengths may be adjusted, and the frame B is provided with jam-nuts t, which form a stop which prevents the cross-head from slidingtoo far rearwardly. No stops are shown at the front end of the frame forthe links to bear against, as the inclined or curved end 9 of thetrip-bar bears against the hub of the link H on each side, and thedisengagement is effected by the rearward motion of the forked bracket.The checkspring N is arranged between the trolleysupport and theslidable cross-head P of the frame. The flexible connections forresetting the trip-rods are arranged between lugs on the rear end partsof the trip-bars and the arms 6 of the trolley-support and are marked0". l The action of the devices shown in Figs. 5 and 6 is the same ashereinbefore described with reference to the preferred form ofconstruction. I

What I claim isi 1. In a trolley-stand, the combination, with a base, ofa vertically-movable frame pivotally supported by the said base, atrolley-support carried by the said frame, and stops on the said baseand frame provided with friction-surfaces which coact to raise the saidframe and permit its position to be reversed when pressed together withsufficient force.

2. In a trolley-stand, the combination, with a base, of a frame pivotedto the base and free to slide vertically with relation to it, atrolley-support carried by the said frame, and check-stops on the saidbase and frame whichprevent the frame from swinging too farautomatically and permit to be turned around by hand.

3. In a trolley-stand, the combination, with a frame, and a trolley-suport ivoted to the frame; of a link pivote to t e said trolley-support, aspring-actuated trip-bar pivoted to the said link at one end andhavingits other end slidably supported from the said frame, and means forholding the said link and trip-barin their folded position to supportthe said trolley-sup ort.

4. In a trolley-stand, t e combination, with a frame, and a trolley-suport pivoted to the frame; of a link pivote to the said trolley-support,a spring-actuated trip bar pivoted to the said link at one end andhaving its other end slidably-su ported from the said frame, and stopson tlie saidlink and frame which normally hold the said link andtrip-bar in their folded position and which trip them open when thetrolley leaves the line-wire.

5. In a trolley-stand, the combination, with a frame, and a trolley-suport pivoted to the frame; of a link pivote to the said trolley-support,a spring-actuated trip-bar pivoted to the said link at one end andhaving its other end slidably supported from the said frame, and aflexible connection between the said trolley-support and the saidtrip-bar whereby the said link and trip-bar are folded and set when thetrolley-support is pulled downward.

6. In a trolley-stand, the combination, with a frame, and atrolley-support pivoted to the frame; of a link pivoted to the saidtrolley-support, a s ring-actuated trip-bar having its front en inclinedor curved to clear the pivot of the said link and pivoted to the saidlink and having its rear end slidably supported from the said frame, andmeans for holding the said link and trip-bar in their folded position tosupport the said trolleysupport.

7. In a trolleystand, the combination with a frame, and atrolley-support having a forked lower end portion which is pivoted tothe said frame; of a link pivoted in the forked portion of the saidsupport, a spring-actuated trip-bar arranged longitudinally over thesaid frame one end of the said trip-bar being pivoted to the said linkand its other end being slidably supported from the said frame, andmeans for holding the said link and tripbar in their folded position.

8. In a trolleystand, the combination, with a frame, and atrolley-support pivoted to the frame; of a link pivoted to the saidtrolley-support, a spring-actuated trip-bar arranged longitudinally overthe said frame one end of the said trip-bar being pivoted to the saidlink and its other end being slidably supported from the said frame, astop on the said frame for limiting the rearward movement of the saidtrip-bar, and means for holding the said link and bar in their foldedposi tion.

9. In a trolley-stand, the combination, 'With a frame, and atrolley-support pivoted to the frame; of a link pivoted to the saidtrolley-support, a trip-bar arranged longitudinally over the said frameone end of the said trip-bar being slidably supported from the saidframe and its other end being pivoted to the said link, twosupporting-springs arranged at the sides of the trip-bar between itsfront endportion and the rear part of the said frame, and means forholding the said link and trip-bar in their folded position.

In testimony whereof I have affixed my I signature in the presence oftwo witnesses.

BONIFACE A. GRASBERGER. Witnesses:

J. KENT RAWLEY, JOHN B. WELSH.

